Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Behavior Analysis of Ozone Addition to an Ethanol/O2 Reactive Flow Simulation.
Submission Author:
George Stephane Queiroz de Oliveira , PA
Co-Authors:
George Stephane Queiroz de Oliveira, Gianfranco Stieven, Luanna Costa, Rene Gonçalves
Presenter: George Stephane Queiroz de Oliveira
doi://10.26678/ABCM.COBEM2017.COB17-1732
Abstract
Rocket engines powered by liquid propellant use combustion processes with sprays. The main advantages of this process are related to the increase of flame control, thus enabling the interruption and restart of the combustion process and higher safety in controlling the fuel. Based on the above, this paper presents an analysis of a reactive axisymmetric flow, using a free jet liquid fuel injection. Ethanol and Oxygen are used as fuel and oxidizer, respectively, and Ozone as an additive to increase combustion efficiency. The behavior of the reactive flow and flame formation are calculated by CFD, whereas the phenomenon is approached by the finite volume method in a mesh generated by ANSYS®FLUENT. The mechanism of chemical kinetics considers a global reaction, irreversible and the combustion regime considered is non-premixed. The results obtained for speed and temperature are compared to experimental results in the literature and show the general behavior of the adopted simulation conditions, showing that the arrangement of defined models managed to capture reasonable results for comparison purposes.
Keywords
ANSYS®FLUENT, Reactive Flow, ethanol, ozone
